[A comparative evaluation of radionuclide and ultrasonic studies of the thyroid].

Unlike radionuclide scanning (RNS) ultrasound investigation (USI) permits thyroid volume estimation in hyperplasia and euthyroid goiter. USI in nodular goiter gives an opportunity to reveal the sizes of a tumor, its macrostructure, topographic position with regard to the neck organs and vessels and is a method of choice in autoimmune thyroiditis. A considerable advantage of USI is a possibility to characterize the thyroid collateral lobe in toxic adenoma and to perform investigations over time.

[Radioimmunoassay in the diagnosis of thyroid cancer].

The paper is concerned with a study of the concentration of thyrotropic hormone (TTH), thyroxine, triidothyronine, thyroxine-binding globulin (TBG), thyroglobulin (TG) and carcinoembryonic antigen (CEA) in the blood of 69 patients with benign and malignant thyroid tumors. It has been established that the determination of TTH and TBG level can be used as an additional criterion to define the nature of a tumor process in the thyroid gland. A study of TTH and TG levels is of diagnostic importance in patients with recurrences and metastases of thyroidal cancer to the lungs.